The colored water idea is brilliant, Sal. I was thinking about water cooling myself, but the condensation is more my fear than leaks. I have some water cooled heatsinks I made a few years ago for bridge rectifiers in a welding machine. I might save those for if or when I get into some LEDs. Very hot and humid in my area and I've had heat issues in the past. I have a great cooling and air flow system now but at the cost of kwHrs.

"Oh, is there a time factor for fluorescent blacklights?" - We don't have that data for two reasons: (1) Fluorescent Blacklights don't have meaningful output in the desired visible and Far Red ranges, and (2) they trigger as a Blue "Day" spectrum recognized by the plants as a Blue photoperiodic signal, so they aren't usable for PAD timing.


Sal, that's what I was thinking though. Additional 300nm-400nm during the day cycle. Quicker conversion from Pfr back to Pr state. Or, would it just increase that amount of time and power needed in to get back to Pfr state?

I cant find the article now but I recently read about flouro blacklights killing pathogens similar to UV but takes longer. 45 minutes or so to kill most influenza if I recall correctly.
:thumbsup: